Backport to branch(3.16) : Fix error handling for mutations in Cassandra

[feeblefakie]

This is an automated backport of the following:

• Original PR: Fix error handling for mutations in Cassandra #2827
• Backported commit: e49e38c

Please merge this PR after all checks have passed.

[gemini-code-assist]

Summary of Changes

Hello @feeblefakie, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request backports a fix to the 3.16 branch that modifies error handling for mutations in Cassandra. It replaces RetriableExecutionException with ExecutionException in the BatchHandler and MutateStatementHandler classes, and updates the corresponding test cases to reflect this change. This ensures that Cassandra-related errors during mutations are handled appropriately.

Highlights

• Error Handling: Replaces RetriableExecutionException with ExecutionException in BatchHandler to handle Cassandra-related errors during batch mutations.
• Exception Handling: Replaces RetriableExecutionException with ExecutionException in MutateStatementHandler for handling Cassandra-related errors during mutations.
• Test Updates: Updates test cases in BatchHandlerTest and InsertStatementHandlerTest to reflect the change from RetriableExecutionException to ExecutionException.

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[gemini-code-assist]

Code Review

This pull request is a backport that addresses a critical correctness issue in the Cassandra storage implementation. The main change is to stop treating WriteTimeoutException as a retriable exception for mutation operations. This is the correct approach, as a write timeout in Cassandra leaves the operation in an indeterminate state—it may or may not have been applied. Retrying could lead to data inconsistency.

The changes are consistently applied across BatchHandler and MutateStatementHandler, and the corresponding tests have been updated to reflect the new exception handling logic.

Overall, this is an excellent and important fix.